<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>派生选择器</title>
		<!-- 需求：派生选择器抓取页面“行内2”颜色任意
		                                     字体放大50px
			父类【id】							 
											 -->
		<style>
			#dl div div span{
				font-size: 50px;
				color: #55ff00;
			}
			
			.al div div s{
				font-size: 50px;
				color: #ff0000;
			}
			.al div div div s{
				font-size: 50px;
				color: #23ff0b;
			}
		</style>
	</head>
	<body>
		<hr>
		<div class="al">
			<div><p>段落1</p><div><s>删除线</s><div><s>删除线</s></div></div></div>
			<div><p>段落2</p></div>
		</div>
		
		
		
		<hr>
		<div id="dl">
		   <div> 
			  <p>段落</p>
			  <span>行内1</span>
			  <div>
				<span>行内2</span>
			  </div>
		   </div>
		</div>
		
		
	</body>
</html>